FAR2
Chr 12fatty acyl-CoA reductase 2
Also known as: HEL-S-81, MLSTD1, SDR10E2
The FAR2 protein is a peroxisomal reductase that catalyzes the reduction of fatty acyl-CoA to fatty alcohols, which are essential substrates for ether lipid and plasmalogen synthesis. Mutations cause autosomal recessive spastic paraplegia with intellectual disability and hearing loss, typically presenting in early childhood. This gene shows moderate constraint against loss-of-function variants, suggesting intolerance to complete protein loss.
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
More LoF-intolerant than ~75% of genes
Mild missense constraint
The highest-scoring mechanism for this gene is dominant-negative.
Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.
ClinVar Variant Classifications
120 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 0 | 0 | 30 | 0 | 30 |
Likely Pathogenic | 0 | 0 | 2 | 0 | 2 |
VUS | 0 | 59 | 7 | 0 | 66 |
Likely Benign | 0 | 1 | 0 | 0 | 1 |
Benign | 0 | 0 | 2 | 1 | 3 |
| Total | 0 | 60 | 41 | 1 | 102 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
FAR2 · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
No active trials found for this gene.
Search ClinicalTrials.gov →External Resources
Links to major genomics databases and tools